Stewie Griffin

Stewart Gilligan "Stewie" Griffin is a fictional character from the animated television series Family Guy. He is voiced by Seth MacFarlane and first appeared on television, along with the rest of the Griffin family, in the episode "Death Has a Shadow" on January 31, 1999. Stewie was created and designed by MacFarlane, who was asked to pitch a pilot to the Fox Broadcasting Company based on The Life of Larry and Larry and Steve, two animated shorts created by MacFarlane featuring a middle-aged man named Larry and an intellectual dog named Steve.

Stewie is a highly intelligent and precocious toddler who talks and behaves like an adult. He is the third child and second son of Peter and Lois Griffin, the youngest brother of Meg and Chris Griffin, and the older half-brother of Bertram. He began the series as a megalomaniacal sociopath obsessed with violence, matricide, and world domination. As the series progressed, particularly following the direct-to-video film Stewie Griffin: The Untold Story and the two-episode arc consisting of Stewie Kills Lois and Lois Kills Stewie, the more devious and violent aspects of his personality were toned down, and he evolved into a more eccentric, friendly, and flamboyant character. He also developed a close friendship with the family’s anthropomorphic dog, Brian, whom he frequently antagonized in earlier episodes. Stewie is widely regarded as the show’s breakout character.